Submission #629100

#	Time	Username	Problem	Language	Result	Execution time	Memory
629100		kwongweng	Catfish Farm (IOI22_fish)	C++17	12 / 100	89 ms	10104 KiB

fish

#include "fish.h"

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef vector<int> vi;
#define FOR(i,a,b) for(int i = a; i < b; i++)

ll max_weights(int N, int M, vi X, vi Y, vi W) {
  vector<ll> A(N);
  FOR(i,0,M){
    A[X[i]] = W[i];
  }
  ll dp[N][2]; memset(dp,0,sizeof(dp));
  if (N>1){
    dp[1][0] = A[1];
    dp[1][1] = A[0];
  }
  FOR(i,2,N){
    dp[i][0] = dp[i-1][1] + A[i];
    dp[i][1] = max(max(dp[i-1][1], dp[i-1][0]), dp[i-2][0] + A[i-1]);
  }
  FOR(i,0,M){
    if (Y[i] > 0){
      ll ans = 0; FOR(j,0,M) ans += W[j];
      return ans;
    } 
  }
  return max(dp[N-1][0], dp[N-1][1]);
}

• Subtask 1: 3 / 3
• Subtask 2: 0 / 6
• Subtask 3: 9 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16